﻿using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class _Default : System.Web.UI.Page
{
    public const int BEGIN = 1;
    //对象级变量
    private int a = 2;
    //<summary>
    //文档注释
    //<param name="sender"></param>
    //<param name = "e" ></ param >
    protected void Page_Load(object sender, EventArgs e)
    {
        int b = 3; //局部变量
        //Ctrl+. 提示 
        Debug.Write("在Debug模式下，显示调试窗口");

        // 单行注释
        /* 多行注释*/
        Response.Write("常量"+BEGIN+"<br>");
        
        Response.Write("常量" + a + "<br>");
        for(int i = 0; i < b; i++)
        {
            // i就是块级变量
        }

    }
}